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Published on: October 15, 2021
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The 'plunger' technique for direct aspiration thrombectomy
1Cerebrovascular Program, Vanderbilt University Medical Center, Nashville, Tennessee, USA m.froehler@vumc.org.
Journal of Neurointerventional Surgery
|December 5, 2023
Summary
Direct aspiration thrombectomy for acute ischemic stroke can be improved with cyclic aspiration. The
Area of Science:
- Neurosurgery
- Endovascular Therapy
- Neurology
Background:
- Direct aspiration thrombectomy is a primary endovascular treatment for acute ischemic stroke.
- Current methods often use static aspiration, applying a fixed vacuum.
- Clot deformation during aspiration can enhance catheter ingestion.
Purpose of the Study:
- To describe a novel manual technique for cyclic aspiration in stroke thrombectomy.
- To introduce the 'plunger' technique for enhanced clot ingestion.
Main Methods:
- Utilizing a 60 mL locking syringe to manually apply on/off vacuum force.
- Demonstrating the 'plunger' technique for cyclic aspiration during thrombectomy.
- A video demonstration of the technique is provided.
Main Results:
- The 'plunger' technique offers a simple, manual approach to cyclic aspiration.
- Cyclic aspiration may improve clot ingestion compared to static methods.
- This technique aims to enhance recanalization in acute ischemic stroke.
Conclusions:
- The 'plunger' technique provides a feasible manual method for cyclic aspiration in stroke thrombectomy.
- This approach may optimize clot removal and improve patient outcomes.
- Further evaluation of this technique in clinical practice is warranted.

